In the links below we have presented what we hope you will find to be some straightforward, objective information about some of the leading compression technologies we see being considered for similar applications to Ro-Flo’s.
Liquid Ring Compressor
Flooded Screw Compressor
Reciprocating Compressor
Compressor Technology Comparison
| Rotary Vane | Liquid Ring | Flooded Screw | Lobe (Blower) | Centrifugal Blower | |
|---|---|---|---|---|---|
| Inlet Vaccum | ~ 28 inches Hg | ~ 28 inches Hg | Requires minimum ∆P | ~ 16 inches Hg | ~ 16 inches Hg |
| Max Discharge Pressure (psig) | 150 | 200+ | 200+ | ~ 20-25 | ~ 20-15 |
| Max Pressure Ratio | 7:1 | 4:1 | 10:1 | 3:1 | 2:1 |
| Flow Variation Over Life of Unit | Low | Low | High | Medium | Low |
| Process Gas Contamination | Low | High | High | Low | Low |
| Power Requirement | Low | High | Med | Low | Low |
| Coolant Flow | Low | High | Med | N/A | N/A |
| Acid Tolerance | Standard Materials | Requires Stainless | Requires Stainless | Requires Stainless | Requires Stainless |
| Ease of Repair | On site/hand tools | Send to shop | Send to shop | Send to shop | Send to shop |
| CAPEX | $$ | $$$ | $$ | $$ | $ |
| Process Dew Point Concern? | No | Yes | Yes | No | No |